Display screen or portion thereof with a set of graphical user interfaces



The FIGURE is a front view of a display screen or portion thereof with a set of graphical user interfaces showing the claimed design.

The outermost broken lines in the FIGURE show a display screen or portion thereof, and form no part of the claimed design. The other broken lines in the FIGURE show portions of the set of graphical user interfaces that form no part of the claimed design.

The set of graphical user interfaces is arranged on the drawing sheet for the convenience of illustration, and the relative positioning of the graphical user interfaces forms no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with a set of graphical user interfaces, as shown and described. 